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Hydrography of Marian Cove, King George Island, West Antarctica: implications for ice-proximal sedimentation during summer

Cited 4 time in scopus
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Title
Hydrography of Marian Cove, King George Island, West Antarctica: implications for ice-proximal sedimentation during summer
Authors
Yoo, Kyu-Cheul
Lee, Min Kyung
Yoon, Ho Il
Kang, Cheon Yoon
Subject
Environmental Sciences & Ecology; Physical Geography; Geology
Keywords
Antarctic Peninsula; CTDT; Fjord; Sediment; Water structure; Antarctic; RV Yuzhmorgeologiya
Issue Date
2015
Citation
Yoo, Kyu-Cheul, et al. 2015. "Hydrography of Marian Cove, King George Island, West Antarctica: implications for ice-proximal sedimentation during summer". Antarctic Science, 27: 185-196.
Abstract
During the summer, from 1996-2000, vertical profiles of conductivity, temperature and transmissivity were obtained near the tidewater glacier of Marian Cove, King George Island, Antarctic Peninsula. The aims for the study were to determine the short-term variations of water structure due to hydrographic forcings and to understand sedimentation of suspended particulate matter in Antarctic fjord environments. Four distinct water layers were identified in the ice-proximal zone of the cove: i) a surface layer composed of cold and turbid meltwater, ii) a relatively warm Maxwell Bay inflow layer with characteristics of outer fjord water, iii) a turbid/cold mid-depth layer (40-70 m) originating from subglacial discharge, and iv) a deep layer comprised of the remnant winter water. The main factor influencing the characteristics of glacial meltwater layers and driving deposition of suspended particles in the cove is tidal forcing coupled with wind stress. The relatively small amount of meltwater discharge in Marian Cove yields low accumulation rates of non-biogenic sedimentary particles in the cove. The response to north-western and western winds, coupled with flood tide, may promote settling and sedimentation of suspended particles from turbid layers in the ice-proximal zone of the cove.
DOI
http://dx.doi.org/10.1017/S095410201400056X
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